Following on from My post regarding Cousteau's dive watch, here's the camera he developed with the Belgian engineer Jean De Wouters in 1956. Later Nikon got involved. Working together in a joint venture, they announced total success in 1961. Sold at first in France under the name of Calypsophot, this revolutionary camera -the world's first full-fledged underwater camera- went on sale in Japan in 1963 as Nikonos 1. It remained in production (through many changes) until the 1980s